For more than 100 years, Chicago-based United States Gypsum Company has been a leader in producing products and systems to build the environments in which people live, work and play. As an inventor of wallboard and ceiling tile, USG was one of the companies to create the standards for North America's building materials industry. Its products are used in everything from major commercial developments and residential housing to simple home improvement projects. Its flagship brands include Sheetrock Brand gypsum panels and Durock Brand cement board, which are recognized throughout the world. USG is among the worlds leading producers of gypsum wallboard, joint compound and an array of related products for the construction and remodeling industries. It is also a worldwide leader in the manufacture of ceiling suspension systems and is recognized as a premier acoustical panel and specialty ceiling systems manufacturer. United States Gypsum Company has a location in Chicago.